Find an expression, in factored form, for the area of the shaded region. 
A. (x - 2y)(x - 3y)
B. (x - 5y)2
C. 5(x - y)2
D. (x - y)(x - 3y)
Answer: A
Mathematics
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Use a graph in a [-2?, 2?, 
] by [-3, 3, 1] viewing rectangle to complete the identity.
= ?
A. 2 cos x - 1 B. sin x + 1 C. sin x D. cos x
Mathematics
Solve the equation.-3a + 3 + 4a = 7 - 23
A. -19 B. -33 C. 33 D. 19
Mathematics
Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (5, 0) and (-5, 0)
B. foci at (
, 0) and (-
, 0)
C. foci at (0, 
) and (0, -
)
D. foci at (4, 0) and (-4, 0)
Mathematics
Decide whether the statement is always true, sometimes true, or never true.The product of two numbers with different signs is positive.
A. Sometimes true B. Always true C. Never true
Mathematics